Echinococcus multilocularis Infection Acquired in Central Europe in a Migrant from an E. granulosus-Endemic Country - A Case Report.

Authors

Tomáš Palla, Klaus Brehm, Thomas Glück, Frank Hanses

Published in

Travel medicine and infectious disease. Pages 103016. Aug 29, 2026. Epub Aug 29, 2026.

Abstract

Echinococcosis is a zoonotic infection caused by tapeworms of the genus Echinococcus. Geographic provenance is often used to guide species attribution, but may be misleading in patients who have migrated into endemic areas.
A cystic hepatic lesion was discovered in a migrant from Eritrea, residing in Germany for 8 years. Imaging studies (Ultrasound, CT, MRI, PET-CT) demonstrated a polycystic structure in the right lobe. Serology was positive for Echinococcus (without species differentiation). Based on the patient's origin and imaging morphology, cystic echinococcosis caused by E. granulosus was initially assumed. After initiating albendazole chemotherapy, hemihepatectomy was performed. Unexpectedly, molecular analysis demonstrated >99% concordance with E. multilocularis, confirming a diagnosis of alveolar echinococcosis (AE) acquired in Germany.
Migrants may acquire endemic zoonoses including AE in Central Europe, assumptions based on geographic origin may thus be misleading. Molecular species confirmation is helpful when imaging and serology do not unequivocally differentiate Echinococcus species.

PMID:
42668028
Bibliographic data and abstract were imported from PubMed on 30 Aug 2026.

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